High-speed bag-making filling and sealing machine

Abstract

The invention discloses a high-speed bag-making filling and sealing machine, and relates to the technical field of pharmaceutical equipment, the high-speed bag-making filling and sealing machine comprises a bag-making process line and a filling and sealing process line which are connected in sequence, each of the bag-making process line and the filling and sealing process line is provided with a magnetic suspension conveying system, and each magnetic suspension conveying system comprises a track, an extending path passes through a plurality of target stations; the multiple rotor sets are movably arranged on the track in the extending direction of the track, each rotor set comprises a clamping rotor, and each clamping rotor is provided with a workpiece clamp used for clamping a workpiece; and the controller is in communication connection with all the mover groups, is used for independently controlling the position and speed of each mover group on the track, and can control any one mover group to move to the next target station independent of other mover groups after carrying a workpiece to complete processing operation at one target station. According to the invention, the problems of low production efficiency, poor flexibility and complex debugging caused by unbalanced station action time are solved.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical equipment technology, and more specifically, to a high-speed bag making and sealing machine. Background Technology

[0002] The fully automatic non-PVC film bag making and sealing machine is a key piece of equipment in the pharmaceutical field for producing infusion soft bags. It can continuously complete the entire process of film application, printing, tube loading, preheating, bag making, welding, shaping, transfer, filling, sealing and unloading.

[0003] Currently, fully automatic non-PVC bag making and sealing machines typically use separate synchronous belt conveyor systems to drive the bag making process and the sealing process. This system consists of a synchronous belt driven by a servo motor, connecting various process stations. Multiple clamps are fixed on the synchronous belt, and the belt drives the nozzle and film material to move between stations. Specifically, the film material, pulled by the reciprocating motion of the film clamps at the film feeding station, travels to the bag making station with the preheated nozzle located on the synchronous belt clamps. At the bag making station, the film material undergoes hot pressing and is cut to form the infusion chamber. Driven by the synchronous belt, it then undergoes secondary heat sealing and welding of the nozzle, shaping, and transfer to the next station. During this process, preheating, bag making, nozzle welding, and shaping all occur simultaneously. Only after the station with the longest operation time completes can the clamps at other stations move to the next station driven by the synchronous belt. Similarly, after receiving the infusion bag at the transfer station, the rear carriage clamp, driven by a synchronous belt, moves to the filling station. After pressure filling with a certain volume of liquid medicine, the synchronous belt-driven rear carriage clamp moves to the sealing station to complete the sealing process, and then to the unloading station to complete the unloading operation. This synchronous belt conveying solution has the following technical defects:

[0004] 1. Low production efficiency: Since all workstations of the front / rear vehicle are connected in series by a synchronous belt, if the workstation with a shorter action time completes its work ahead of time, it must wait for the slowest workstation before the synchronous belt can start to start the next conveyor. There is a lot of idle waiting time, which seriously limits production efficiency.

[0005] 2. Poor flexibility and difficulty in speeding up: The distance between workstations and the sequence of actions are fixed, and it is impossible to flexibly adjust and optimize them according to the actual needs of each workstation, resulting in limited room for equipment speed-up.

[0006] 3. Complex debugging: All fixtures on the synchronous belt need to be adjusted uniformly based on a single reference, making the debugging process cumbersome and difficult to guarantee accuracy.

[0007] Therefore, how to solve the technical defects of synchronous belt conveyors, such as long waiting time, poor flexibility, and complex debugging, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0008] In view of this, the purpose of the present invention is to provide a high-speed bag making and sealing machine that solves the problems of low production efficiency, poor flexibility and complicated debugging caused by uneven workstation operation time.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A high-speed bag making and sealing machine includes a bag making process line and a sealing process line connected sequentially. Multiple target workstations are arranged along the workpiece travel direction on both the bag making and sealing process lines. Both the bag making and sealing process lines are equipped with a magnetic levitation conveying system, which includes:

[0011] The track extends through multiple target workstations;

[0012] Multiple moving part groups are movably disposed on the track along the extension direction of the track. Each moving part group includes a clamping moving part, which is provided with a workpiece clamp for clamping the workpiece and can drive the workpiece to be transported to each of the target workstations.

[0013] The controller is communicatively connected to all the moving parts and is used to independently control the position and speed of each moving part on the track. It can control any moving part to move independently to the next target station after carrying the workpiece to complete the processing operation at one target station.

[0014] Preferably, the extension path of the track is circular.

[0015] Preferably, the magnetic levitation transport system further includes a drive coil assembly disposed on the track side and a permanent magnet assembly disposed on the mover assembly.

[0016] Preferably, two sets of identical workstations are arranged side by side next to the track of at least one of the bag-making process line and the filling and sealing process line for at least one of the target workstations.

[0017] Preferably, the parallel working stations are any one or more of the following: tube heat sealing station, filling station, capping station, or bag output station.

[0018] Preferably, each of the moving parts groups further includes a film-pulling moving part, and one film-pulling moving part and at least one clamping moving part arranged adjacent to it along the extension direction of the track form a moving part group, and the film-pulling moving part is provided with a pin for hooking the film material at the film-pulling station, and the film-pulling moving part pulls the film material to cover the workpiece clamped by at least one of the clamping moving parts behind it.

[0019] Preferably, one of the target stations in the bag-making process line is a bag-making station, which is equipped with a servo-driven mold. The servo-driven mold includes a servo motor, a reducer driven by the servo motor, an electric push rod driven by the reducer, an upper mold connected to the electric push rod, and a lower mold located directly below the upper mold.

[0020] Preferably, a rotary transfer mechanism is provided between the bag-making process line and the filling and sealing process line, the rotary transfer mechanism comprising:

[0021] Rotary drive component;

[0022] A rotating shaft, the lower end of which is connected to the output end of the rotating drive component and extends vertically;

[0023] The support arm is horizontally positioned at the upper end of the rotating shaft;

[0024] The transfer fixture assembly includes:

[0025] A flipping drive component is provided on the support arm;

[0026] The transfer fixture is connected to the output end of the flipping drive and can be driven by the flipping drive to switch between horizontal and vertical postures.

[0027] The upper bag drive is disposed adjacent to the bag making process line and is used to push the bag body from the workpiece clamp of the bag making process line to the first surface of the transfer clamp when the transfer clamp is in a vertical position and its first surface faces the bag making process line.

[0028] A lower bag drive unit, located on the support arm, is used to push the bag body from the first side of the transfer fixture to the workpiece fixture of the filling process line when the transfer fixture is in a horizontal position and its first surface faces the filling process line.

[0029] Preferably, the center of the support arm is connected to the upper end of the rotating shaft, and the transfer clamp assembly is provided in two sets and symmetrically arranged with the center of the support arm as the center.

[0030] Preferably, the transfer fixture includes a plate body connected to the output end of the flipping drive component, and a set of hooks is provided on the first side of the plate body for hooking the bag body.

[0031] The present invention provides a high-speed bag making and sealing machine that replaces the conventional synchronous belt conveyor system with a magnetic levitation conveyor system, which has the following advantages:

[0032] 1. Since each of the aforementioned moving parts is independently controlled by the controller, after the moving parts of the target station with short action time carry the workpiece to complete the processing operation at the target station, they do not need to wait for the moving parts of the target station with long action time. They can complete the operation in advance and enter the next target station, eliminating a lot of idle waiting time, thereby improving production efficiency.

[0033] 2. The movement position and speed of each moving part can be independently set and adjusted by the controller, which allows the equipment to adapt to the production line speed required by different products, thereby improving flexibility.

[0034] 3. The positioning accuracy of each moving part is guaranteed by its corresponding controller. The repeatability is high, and there is no need to adjust all fixtures synchronously with a single reference, which simplifies the assembly and debugging process and reduces the debugging difficulty. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of a high-speed bag making and sealing machine provided by the present invention;

[0037] Figure 2 This is a schematic diagram of the magnetic levitation transport system provided by the present invention;

[0038] Figure 3 This is a schematic diagram of the servo drive mold provided by the present invention;

[0039] Figure 4 A schematic diagram of the rotary transfer mechanism provided by the present invention;

[0040] Figure 5 for Figure 4 The diagram shows the structure of the flipping drive component.

[0041] Figure label:

[0042] 1-Bag making line; 11-Hopper feeding station; 12-Top tube station; 13-Top tube preheating station 1; 14-Top tube preheating station 2; 15-Film application station; 16-Printing station; 17-Film stretching station; 18-Bag making station; 19-Top tube heat sealing station 1; 110-Top tube heat sealing station 2; 111-Shaping station; 112-Transfer station;

[0043] 2-Filling and sealing process line; 21-Filling station; 22-Capping station; 23-Bag output station;

[0044] 3-Magnetic levitation conveyor system; 31-Rail; 32-Motor assembly; 321-Clamping mover; 3211-Workpiece fixture; 322-Diameter stretching mover; 3221-Pin;

[0045] 4-Servo-driven mold; 41-Servo motor; 42-Reducer; 43-Electric push rod; 44-Upper mold; 45-Lower mold;

[0046] 5-Rotary transfer mechanism; 51-Rotary drive component; 52-Rotary shaft; 53-Support arm; 54-Tilting drive component; 541-Driver; 542-Link 1; 543-Rotating shaft; 544-Link 2; 55-Transfer clamp; 551-Plate body; 552-Hook; 56-Upper bag drive component; 57-Lower bag drive component;

[0047] 6-Framework;

[0048] 7-Electrical control cabinet. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] The core of this invention is to provide a high-speed bag making and sealing machine, which solves the problems of low production efficiency, poor flexibility, and complex debugging caused by uneven workstation operation time.

[0051] Please refer to Figure 1 and Figure 2 This application provides a specific embodiment of a high-speed bag making and sealing machine, including a bag making process line 1 and a sealing process line 2 connected in sequence. Multiple target workstations are arranged on both the bag making process line 1 and the sealing process line 2 along the workpiece travel direction. Both the bag making process line 1 and the sealing process line 2 are equipped with a magnetic levitation conveying system 3. The magnetic levitation conveying system 3 includes a track 31, multiple moving parts 32 and a controller.

[0052] The extended path of track 31 passes through multiple target workstations.

[0053] Multiple mover groups 32 are movably disposed on the track 31 along the extension direction of the track 31. Each mover group 32 includes a clamping mover 321. The clamping mover 321 is provided with a workpiece clamp 3211 for clamping the workpiece, which can drive the workpiece to be transported to each target station.

[0054] The controller is connected to all moving parts 32 and is used to independently control the position and speed of each moving part 32 on the track 31. It can control any moving part 32 to carry the workpiece to complete the processing operation at one target station and then move independently to the next target station.

[0055] It should be further explained that the high-speed bag making and sealing machine includes a frame 6, on which bag making line 1 and sealing line 2 are connected in sequence. Along the track 31 of bag making line 1, multiple target stations are sequentially arranged, including a film application station, a printing station, a film stretching station, a tube loading station, a tube preheating station, a bag making station, a tube heat sealing station, a shaping station, and a transfer station. Along the track 31 of sealing line 2, multiple target stations are sequentially arranged, including a filling station, a capping station, and a bag output station, thus continuously completing the entire process flow of film application, printing, tube loading, preheating, bag making, welding, shaping, transfer, filling, sealing, and unloading.

[0056] Both the bag-making line 1 and the filling line 2 have multiple moving parts 32 on their tracks 31. Each moving part 32 is movably mounted on the track 31 along its extension direction and is synchronously controlled by a controller. Each moving part 32 includes a clamping moving part 321, which is equipped with a workpiece clamp 3211. The workpiece clamp 3211 is used to clamp the workpiece (mouth tube, bag body). Before the bag-making station 18, the workpiece clamp 3211 only clamps the mouth tube. After passing the bag-making station 18, the workpiece clamp 3211 clamps the bag body connected to the mouth tube.

[0057] During equipment operation, the controller can control each moving unit 32 to follow an independent movement path. For example, on bag-making line 1, the preheating station for the tube opening, the bag-making station 18, the heat-sealing station for the tube opening, and the shaping station 111 operate simultaneously. When a moving unit 32 carries a workpiece into a time-consuming target station (such as the heat-sealing station 110 for the tube opening), the controller can immediately control a moving unit 32 that has completed its current task to start ahead of time and enter the next target station (such as the shaping station 111). In this way, the moving units 32 do not need to wait for each other, eliminating a large amount of idle waiting time, so that the production cycle of the equipment is not limited by the slowest station, thereby improving production efficiency.

[0058] Furthermore, since the movement position and speed of each mover assembly 32 can be independently set and adjusted by the controller, the equipment can adapt to production line speeds requiring different products, thereby improving flexibility. Additionally, the positioning accuracy of each mover assembly 32 is guaranteed by its corresponding controller, resulting in high repeatability. This eliminates the need to synchronously adjust all fixtures using a single reference, simplifying assembly and debugging processes and reducing debugging difficulty.

[0059] Based on the above embodiments, as a further preferred embodiment, the extension path of the track 31 is circular, which can realize that the mover group 32 and the workpiece fixture 3211 on it can circulate through each target station, thereby improving the conveying efficiency.

[0060] Preferably, the tracks 31 of both the bag making line 1 and the filling and sealing line 2 are made of high-precision aluminum alloy profiles and fixed to the frame 6, which can improve the structural stability of the tracks 31 and thus ensure the stability and reliability of the magnetic levitation conveying system 3.

[0061] Based on the above embodiments, as a further preferred embodiment, the magnetic levitation transport system 3 also includes a drive coil assembly disposed on the side of the track 31 and a permanent magnet assembly disposed on the mover assembly 32.

[0062] Specifically, drive coil assemblies are closely arranged along the inner side of track 31, serving as the stator of the system. The drive coil assemblies are preferably three-phase AC coils, which, when connected to a three-phase frequency converter, can generate an electromagnetic field in the direction of travel. All movers in each mover group 32 (including clamping movers 321 and film-pulling movers 322) are equipped with permanent magnets. Each clamping mover 321 or film-pulling mover 322 maintains a small air gap with track 31 through the permanent magnet and suspends above track 31.

[0063] When current is applied to the drive coil assembly, the generated electromagnetic field interacts with the permanent magnet on the mover. According to the principle of electromagnetic induction, a Lorentz force is generated, which propels the mover to move in a straight line along track 31. A levitation force is also generated, which uses the attraction between the permanent magnet and the coil core in track 31 to generate an upward attraction force. This attraction force is balanced with the gravity of the mover assembly 32, achieving a contactless levitation state for the mover.

[0064] Thus, by using a magnetic levitation conveyor system 3 to drive the workpiece with magnetic force, frictional loss can be eliminated, resulting in smoother operation and higher efficiency.

[0065] Based on the above embodiments, as a further preferred option, please refer to... Figure 1 Along the track 31 of at least one of the bag making line 1 and the filling line 2, there are two sets of identical workstations arranged side by side for at least one target workstation.

[0066] In other words, in bag making line 1 and filling line 2, for at least one target station whose operation time is greater than the system average cycle time, two identical stations can be set up to work in parallel. Thus, to eliminate time-consuming target stations (such as the tube heat sealing station 110), an additional identical station can be added, allowing both to perform tube welding operations simultaneously. For example, when one actuator group 32 is performing heat sealing (a type of welding operation) at the tube heat sealing station 19, another upstream actuator group 32 can immediately enter the tube heat sealing station 110 to perform the same heat sealing operation, thereby eliminating the time-consuming target station's limitation on the entire production line cycle time and further improving production efficiency.

[0067] Further optimization is that the parallel working stations are any one or more of the following: tube preheating station, tube heat sealing station, filling station 21, capping station 22, or bag output station 23.

[0068] In one specific embodiment, the bag making process line 1 is arranged in sequence around the track 31 as follows: upper tube station 12, tube preheating station 13, tube preheating station 2 14, film stretching station 17, bag making station 18, tube heat sealing station 19, two sets of tube heat sealing stations 2 110, shaping station 111, and transfer station 112. Among them, the film stretching station 17 is arranged from far to near the track 31 as follows: film stretching station 15, printing station 16, and hopper feeding station 11 are arranged next to the upper tube station 12.

[0069] The track 31 of the filling and sealing process line 2 is adjacent to the track 31 of the bag making process line 1 with a gap. This gap accommodates the rotary transfer mechanism 5 described below. The rotary transfer mechanism 5 can transfer the workpiece (such as a bag) held by the workpiece clamp 3211 of the bag making process line 1 to the workpiece clamp 3211 of the filling and sealing process line 2 for subsequent filling, sealing and other operations. In addition, two sets of filling stations 21, two sets of capping stations 22 and two sets of bag output stations 23 are arranged sequentially on the side of the track 31 of the filling and sealing process line 2 away from the track 31 of the bag making process line 1.

[0070] It should be further explained that the current film-pulling operation process is as follows: the film-pulling gripper picks up the film material at the upper film station 15, pulls the film material to the bag-making station 18, and, in conjunction with the preheated nozzle located on the synchronous belt clamp, the film material is hot-pressed into a bag body at the bag-making station 18. Afterwards, the film-pulling gripper returns to the upper film station 15 to pick up more film material for the next bag hot-pressing operation. This reciprocating motion of the film-pulling gripper results in low film material conveying efficiency, leading to a significant amount of idle time at the bag-making station 18.

[0071] To solve this problem, as a further preferred option based on the above embodiments, please refer to... Figure 2Each mover group 32 also includes a film-pulling mover 322. A film-pulling mover 322 and at least one clamping mover 321 arranged adjacent to it along the extension direction of the track 31 form an action group. The film-pulling mover 322 is provided with a pin 3221 for hooking the film material at the film-pulling station 17 and pulling the film material to cover the workpiece clamped by at least one clamping mover 321 behind it.

[0072] In one specific embodiment, each mover group 32 consists of a film-stretching mover 322 and four clamping movers 321 arranged adjacent to it along the extension direction of the track 31. The mover group 32 is synchronously controlled by a controller, so that the film-stretching mover 322 and the four clamping movers 321 move synchronously to each target station. The film-stretching mover 322 is provided with a needle 3221, which is preferably made of stainless steel and has a conical tip to facilitate piercing the film material. Each of the four clamping movers 321 is provided with a workpiece clamp 3211 for clamping the preheated nozzle.

[0073] During equipment operation, when the mover assembly 32 reaches the film-pulling station 17, the pins 3221 on the film-pulling mover 322 pierce and hook onto the edge of the film material at the upper film station 15. Driven by the controller, the entire mover assembly 32 moves forward synchronously. The film-pulling mover 322 pulls the film material to cover the inlet tubes carried by the four clamping movers 321 behind it. When the mover assembly 32 reaches the bag-making station 18, the pulled film material covers the four inlet tubes and is then die-cast using the bag-making molds (upper mold 44 and lower mold 45) to form four independent infusion bag cavities and complete the edge trimming. Subsequently, the pins 3221 separate from the formed bag body. It should be noted that after the film-pulling mover 322 completes the film-pulling operation, it can follow the clamping movers 321 carrying the four pre-made bags to the subsequent heat-sealing, shaping, and transfer target stations to finally perform the next cycle of film-pulling operation.

[0074] Thus, at least one clamping actuator 321 is equipped with a separate film-pulling actuator 322, which moves synchronously with it. There is no need to go back and forth to pull and cover the film for each opening tube, eliminating the idle time of the bag-making station 18, improving the film material conveying efficiency, and further improving production efficiency.

[0075] Furthermore, if a film-pulling actuator 322 and multiple clamping actuators 321 (such as the aforementioned four clamping actuators 321) form an actuator group 32, then by using a one-pulling-multiple-mode to concentrate and continuously perform film-pulling and covering actions on multiple nozzles, the cycle of the film-pulling actuator 322 on the track 31 can be greatly reduced, effectively improving production efficiency.

[0076] Based on the above embodiments, as a further preferred option, please refer to... Figure 3The bag making station 18 is equipped with a servo-driven mold 4, which includes a servo motor 41, a reducer 42 driven by the servo motor 41, an electric push rod 43 driven by the reducer 42, an upper mold 44 connected to the electric push rod 43, and a lower mold 45 located directly below the upper mold 44.

[0077] In one specific embodiment, the servo motor 41 serves as a power source and is connected to the electric push rod 43 via the reducer 42. The electric push rod 43 extends vertically downward and its end is connected to the upper mold 44 via a connecting plate. The lower mold 45 is fixed on the worktable and located directly below the upper mold 44.

[0078] When the equipment is running, when the clamping mover 321 carrying the workpiece (the tube covered with film material) moves to the bag making station 18, the servo motor 41 increases the torque through the reducer 42, and drives the electric push rod 43 to push the upper mold 44 downward to press the lower mold 45 at high speed. The upper and lower molds 45 close, and heat sealing and cutting are performed to form a bag.

[0079] In this way, the original pneumatic-hydraulic booster cylinder driven structure is replaced, the servo response speed is fast, it can be started and stopped at any time, the mold lifting time is reduced, and the cycle speed of the station can be improved.

[0080] Based on the above embodiments, as a further preferred option, please refer to... Figure 1 and Figure 4 A rotary transfer mechanism 5 is provided between the bag making process line 1 and the filling and sealing process line 2. It should be noted that the rotary transfer mechanism 5 is located in the gap between the bag making process line 1 and the filling and sealing process line 2, and is located on the transfer station 112.

[0081] The rotary transfer mechanism 5 includes a rotary drive 51, a rotary shaft 52, a support arm 53, and a transfer fixture 55 assembly.

[0082] The rotary drive component 51 is preferably a servo motor 41 or a stepper motor. The rotary drive component 51 is located on the transfer station 112 of the frame 6, and its output end is connected to the vertically arranged rotary shaft 52.

[0083] Support arm 53 is connected to the upper end of rotating shaft 52 and is in a horizontal position. Support arm 53 is driven to rotate by rotating drive component 51, so that its two ends switch between bag making process line 1 and filling and sealing process line 2.

[0084] The transfer fixture 55 assembly includes a flipping drive 54, a transfer fixture 55, an upper bag drive 56, and a lower bag drive 57.

[0085] The flipping drive 54 is located on the support arm 53. The output end of the flipping drive 54 is connected to the transfer clamp 55 located at the end of the support arm 53. The transfer clamp 55 is driven by the flipping drive 54 to switch between horizontal and vertical postures.

[0086] The upper bag drive 56 can be a linear cylinder, which is set on the frame 6 adjacent to the bag making process line 1. The output shaft of the upper bag drive 56 is on the same horizontal line as the first face of the transfer clamp 55 when it is in a vertical position and the workpiece clamp 3211 on the bag making process line 1. When the transfer clamp 55 is in a vertical position and its first face faces the bag making process line 1, it can push the bag body from the workpiece clamp 3211 on the bag making process line 1 to the first face of the transfer clamp 55.

[0087] The lower bag drive 57 is located on the support arm 53. The output shaft of the lower bag drive 57 is on the same horizontal line as the first surface of the transfer fixture 55 when it is in a horizontal position and the workpiece clamp 3211 on the transfer fixture 55. When the transfer fixture 55 is in a horizontal position and its first surface faces the filling process line 2, it can push the bag body from the first surface of the transfer fixture 55 to the workpiece clamp 3211 of the filling process line 2.

[0088] When the equipment is running, the transfer fixture 55 at one end of the support arm 53 (located at station A) is driven to a vertical position by the flipping drive 54, and its first face faces the bag making process line 1. A clamping mover 321 that has completed bag making on the bag making process line 1 carries the horizontally placed bag body to the transfer station 112 and is positioned in front of the transfer fixture 55. The upper bag drive 56 pushes the bag body horizontally out of the workpiece fixture 3211 on the bag making process line 1, so that the open end of the bag body is suspended on the first face of the transfer fixture 55 in a vertical position.

[0089] The flipping drive 54 drives the transfer fixture 55 and the bag on it to rotate 90° counterclockwise from a vertical position to a horizontal position. At this time, the bag changes from a horizontal position to a vertical position with the opening facing upwards. Subsequently, the rotation drive 51 drives the entire support arm 53 to rotate (if the bag making process line 1 is parallel to the track 31 of the filling process line 2, then rotate 180°). At this time, the transfer fixture 55 carrying the bag moves from station A to station B (facing the filling process line 2). At station B, the transfer fixture 55 maintains a horizontal position with its first surface facing the filling process line 2. The bag lowering drive 57 pushes the bag with the opening facing upwards horizontally from the first surface of the transfer fixture 55 and places it onto an empty workpiece fixture 3211 on the filling process line 2, thereby transferring the bag that has been completed on the bag making process line 1 to the filling process line 2 for subsequent filling, sealing and other operations.

[0090] More preferably, the center of the support arm 53 is connected to the upper end of the rotating shaft 52, and the transfer clamp 55 assembly is provided in two sets and symmetrically arranged with the center of the support arm 53 as the center.

[0091] In this way, when the transfer fixture 55 at one end of the support arm 53 moves from station A to station B, the transfer fixture 55 at the other end of the support arm 53 will move from station B to station A, and another set of transfer fixture 55 components will start to pick up the next bag, thereby realizing continuous alternating transfer.

[0092] Thus, by using two sets of transfer fixtures with 55 components, efficient and continuous process connection can be achieved, which greatly shortens the transfer cycle compared to single-arm reciprocating transfer.

[0093] Please refer to Figure 5 In one specific embodiment, the flipping drive 54 preferably includes a driver 541 (linear cylinder or linear motor), a first connecting rod 542, a rotating shaft 543, and a second connecting rod 544. The driver 541 is mounted on the support arm 53. The output shaft of the driver 541 extends horizontally and is hinged to the first end of the first connecting rod 542. The rotating shaft 543 is rotatably mounted at the end of the support arm 53, and its axis is perpendicular to the output shaft of the driver 541. The rotating shaft 543 is fixedly connected to the second end of the first connecting rod 542 and to the first end of the second connecting rod 544. The second end of the second connecting rod 544 is connected to the transfer clamp 55. In this way, the telescopic movement of the output shaft of the driver 541 can be converted into rotational movement by the first connecting rod 542 to drive the rotating shaft 543 to rotate, and then drive the transfer clamp 55 to rotate by the second connecting rod 544, thereby realizing the switching of the transfer clamp 55 between a horizontal and a vertical posture.

[0094] Based on the above embodiments, as a further preferred option, please refer to... Figure 4 The transfer clamp 55 includes a plate 551 connected to the output end of the flipping drive 54. A set of hooks 552 is provided on the first surface of the plate 551 for hooking the bag. It should be noted that a gap is formed between adjacent hooks 552 to accommodate the edge of the bag opening, and the hooks 552 preferably have a curved and rounded tail end structure to facilitate hooking the bag while avoiding puncturing or scratching it.

[0095] When the transfer clamp 55 is in a vertical position, its first surface and a set of hooks 552 face the bag-making process line 1. The upper bag drive 56 pushes the bag body, which is placed horizontally on the clamp of the bag-making process line 1, forward. Under the action of the thrust, the open end of the bag body passes through the gap between the set of hooks 552, so that the hooks 552 can hook the bag body from the inside of the bag opening. This allows the bag body to be stably suspended on the vertical plate 551, so that the bag body can be stably held on the transfer clamp 55 during the subsequent flipping to a horizontal position and horizontal rotation. In addition, the lower bag drive 57 pushes the bag body away from the first surface of the plate 551, and the open end of the bag body slides out from the gap between the hooks 552, which facilitates the transfer of the bag body.

[0096] Based on the above embodiments, as a further preferred option, please refer to... Figure 1 This application includes an electrical control cabinet 7, which is located on a frame 6 and has a central processing unit as a human-machine interface software. It can be used for parameter setting, production data monitoring, fault alarm and diagnosis, and communicate with the controllers of various systems or mechanisms.

[0097] The central processing unit is connected to the controller in the magnetic levitation conveyor system 3. The operator can preset the production cycle in the central processing unit, that is, set the motion parameters of each moving part group 32. The central processing unit can transmit data such as the motion trajectory, speed curve, and dwell time of each station to the controller. The controller issues motion commands to each moving part group 32 according to the received signal data, so that each moving part group 32 can move independently and accurately on the track 31.

[0098] The central processing unit communicates with the equipment at each target workstation to ensure that the action rhythm of the equipment (such as the servo-driven mold 4 at bag making workstation 18) is precisely matched with the arrival time of the mover group 32, so as to achieve seamless connection and smooth operation of the entire production process.

[0099] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0100] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0101] The high-speed bag making and sealing machine provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make several improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A high-speed bag making and sealing machine, comprising a bag making process line (1) and a sealing process line (2) connected sequentially, wherein multiple target workstations are arranged along the workpiece travel direction on both the bag making process line (1) and the sealing process line (2), characterized in that: Both the bag-making process line (1) and the filling and sealing process line (2) are equipped with a magnetic levitation conveying system (3), which includes: The track (31) extends through multiple target workstations; Multiple moving parts (32) are movably disposed on the track (31) along the extension direction of the track (31). Each moving part (32) includes a clamping moving part (321). The clamping moving part (321) is provided with a workpiece clamp (3211) for clamping the workpiece, which can drive the workpiece to be transported to each of the target workstations. The controller is communicatively connected to all the moving parts (32) and is used to independently control the position and speed of each moving part (32) on the track (31). It can control any moving part (32) to move independently to the next target station after carrying the workpiece to complete the processing operation at one target station.

2. The high-speed bag making and sealing machine according to claim 1, characterized in that, The extension path of the track (31) is circular.

3. The high-speed bag making and sealing machine according to claim 1, characterized in that, The magnetic levitation transport system (3) also includes a drive coil assembly located on the side of the track (31) and a permanent magnet assembly located on the mover assembly (32).

4. The high-speed bag making and sealing machine according to claim 1, characterized in that, Along the track (31) of at least one of the bag-making process line (1) and the filling process line (2), two sets of identical workstations are arranged side by side for at least one of the target workstations.

5. The high-speed bag making and sealing machine according to claim 4, characterized in that, The workstations that operate in parallel are any one or more of the following: tube heat sealing workstation, filling workstation (21), capping workstation (22), or bag output workstation (23).

6. The high-speed bag making and sealing machine according to claim 1, characterized in that, Each of the moving parts (32) further includes a film-pulling moving part (322). One film-pulling moving part (322) and at least one clamping moving part (321) arranged adjacent to it along the extension direction of the track (31) form a moving part. The film-pulling moving part (322) is provided with a pin (3221) for hooking the film material at the film-pulling station (17) and pulling the film material to cover the workpiece clamped by at least one clamping moving part (321) behind it.

7. The high-speed bag making and sealing machine according to claim 1, characterized in that, One of the target stations in the bag making process line (1) is the bag making station (18). The bag making station (18) is equipped with a servo-driven mold (4). The servo-driven mold (4) includes a servo motor (41), a reducer (42) driven by the servo motor (41), an electric push rod (43) driven by the reducer (42), an upper mold (44) connected to the electric push rod (43), and a lower mold (45) located directly below the upper mold (44).

8. The high-speed bag making and sealing machine according to any one of claims 1 to 7, characterized in that, A rotary transfer mechanism (5) is provided between the bag making process line (1) and the filling and sealing process line (2). The rotary transfer mechanism (5) includes: Rotary drive component (51); The rotating shaft (52) is connected at its lower end to the output end of the rotating drive (51) and extends vertically. The support arm (53) is horizontally positioned at the upper end of the rotating shaft (52); The transfer fixture (55) assembly includes: A tilting drive (54) is provided on the support arm (53); The transfer fixture (55) is connected to the output end of the flip drive (54) and can be driven by the flip drive (54) to switch between horizontal and vertical postures; The upper bag drive (56) is disposed adjacent to the bag making process line (1) and is used to push the bag body from the workpiece clamp (3211) of the bag making process line (1) to the first surface of the transfer clamp (55) when the transfer clamp (55) is in a vertical position and its first surface faces the bag making process line (1). The lower bag drive (57) is provided on the support arm (53) and is used to push the bag body from the first side of the transfer fixture (55) to the workpiece fixture (3211) of the filling process line (2) when the transfer fixture (55) is in a horizontal position and its first side faces the filling process line (2).

9. The high-speed bag making and sealing machine according to claim 8, characterized in that, The center of the support arm (53) is connected to the upper end of the rotating shaft (52), and the transfer clamp (55) assembly is provided in two sets and is symmetrically arranged with the center of the support arm (53) as the center.

10. The high-speed bag making and sealing machine according to claim 8, characterized in that, The transfer clamp (55) includes a plate (551) connected to the output end of the flipping drive (54), and a set of hooks (552) on the first side of the plate (551) for hooking the bag.

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